Biodiversity Conservation and Phylogenetic Systematics

(Marcin) #1

294


southeastern region of the Espinhaço in the contact zone with the Atlantic Forest.
The northeastern, southern and western Cerrado portions have low endemism, not
exceeding four focal-species (Fig. 2 ). Total Evolutionary distinctiveness is also con-
centrated at the center, but with highest values at the Atlantic Forest contact zone
(Espinhaço range), in the central western portion (Caiapônia plateau) and in some
points at contact zone with Pantanal (Fig. 2 ).
Among the 82 species examined, over 80 % (66 species) have restricted distribu-
tion ranges (<6 million ha) and only 11 % (9 species) are widely distributed across
the domain (>35 million ha). Sixty-fi ve (79 %) have less than 20 % of its conserva-
tion target achieved being thus classifi ed as gap species. Thirty-nine of these species
are completely out of Protected Areas , all of them are restricted range species
(<1.5 million ha) (Among the later, some more relictual species are also included,
such as Chiasmocleis mehelyi , Oreobates heterodactylus, O. remotus , Odontophrynus
salvatori, Proceratophrys moratoi e P. cururu ). Only four species endemic to the
Cerrado were considered covered ( Leptodactylus tapiti, Crossodactylus sp.,
Bokermannohyla ibitiguara and Phyllomedusa ayeaye ). All of these covered
species have restricted ranges (<0.25 million ha) with most of their distribution in
protected areas, and 13 species can be considered as partial gaps, presenting between
23 and 57 % of their conservation goal achieved (Table 3 ).
In the conservation prioritization analysis the “best solution” (lower cost and
higher effi ciency) offered by Marxan selected 742 PUs (18.6 % of the biome area )


Fig. 2 Species richness and total evolutionary distinctiveness of amphibian endemic to Cerrado
per Planning Unit s ( PUs )


D.L. Silvano et al.
Free download pdf